(CNN) - The Army plans to look into Sgt. Bowe Bergdahl's case in what it says will be "a comprehensive, coordinated" review, but this wouldn't be the first time the army investigated his disappearance nearly five years ago.
An initial investigation found Bergdahl left his post of his own free will.
A newly released video shows him in Afghanistan less than a week ago, surrounded by Taliban fighters.
One of the fighters waves a white flag as a helicopter approaches.
U.S. Special Forces sweep up Bergdahl, check him for explosives, then carry him away.
As more details come out about his rescue, more questions remain about his disappearance.
Investigators reviewing his case will interview Bergdahl, but not yet. The Army insists its first priority is his health and his reintegration.
It's something Keith Stansell knows a little about. He spent five years as a hostage of leftist insurgents in Colombia
"I think the biggest challenge initially is the overwhelming emotional shock," Stansell said. "You go from somebody telling you when to brush your teeth to the modern world as we see today where we're surrounded by the internet, so just that ingest of information. It's overwhelming and tough to deal with at first. It's tough to process it."
After Bergdahl's disappearance in 2009, the Army's initial investigation concluded he left his outpost deliberately, leaving behind his weapon, bulletproof vest and night vision goggles. The Army didn't call him a deserter, because without speaking to him, they couldn't understand his intent.
Retired Sgt. Josh Korder said he believes he does: "Of anyone in the platoon that we knew of all these people that we fought with and knew all so well, he was the only person that we believed to be capable of that."
Speaking in Poland on Tuesday, President Barack Obama said Bergdahl hasn't been interrogated or met with his family because he's still undergoing medical treatment in Germany.
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